Alert archive / Nebraska / Severe Thunderstorm Warnings in 2021

Severe Thunderstorm Warning 181, NWS North Platte, NE

September 16, 20217 counties in Nebraska

NWS North Platte, NE issued this severe thunderstorm warning at Sep 16, 2021, 8:35 PM CDT for 7 counties in Nebraska. It was in force for 55 min. 1 report came from inside the area while it was in force.

The area

The outline as issued, with what was reported inside it.

The facts

Issued: Sep 16, 2021, 8:35 PM CDT (01:35 UTC)
Expired: Sep 16, 2021, 9:30 PM CDT
In force: 55 min
Issued by: NWS North Platte, NE
Area: Storm-based polygon
Hail: 0.75 in
Wind: 60.0 mph

Counties Blaine County, NE, Custer County, NE, Hooker County, NE, Lincoln County, NE, Logan County, NE, McPherson County, NE, Thomas County, NE

The radar

The North Platte radar (KLNX), 65 km from the middle of the area, began a volume at 01:36 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Sep 16, 8:42 PM CDT	TSTM WND GST 65	7 N North Platte, NE	PERSONAL WEATHER STATION.

Local storm reports filed while the alert was in force, from inside its polygon or its counties.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 16, 8:16 PM CDT	Severe Thunderstorm Watch	SPC	6 hr

The nearest sounding before it

N. Platte/Lee Bi, NE (KLBF), launched 00:00Z, 1.6 hours before the alert went out and 32 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 1601 J/kg
Mixed-layer CIN: -38 J/kg
Mixed-layer LCL: 2561 m above ground
0-6 km bulk shear: 30 kt
0-1 km storm-relative helicity: 106 m²/s²
0-3 km storm-relative helicity: 153 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 4.7

Open this sounding in Storm Lab

The text

As transmitted.

582 
WUUS53 KLBF 170135
SVRLBF
NEC009-041-091-111-113-117-171-170230-
/O.NEW.KLBF.SV.W.0181.210917T0135Z-210917T0230Z/

BULLETIN - IMMEDIATE BROADCAST REQUESTED
Severe Thunderstorm Warning
National Weather Service North Platte NE
835 PM CDT Thu Sep 16 2021

The National Weather Service in North Platte has issued a

* Severe Thunderstorm Warning for...
  Southeastern Hooker County in west central Nebraska...
  Northern Lincoln County in southwestern Nebraska...
  Logan County in west central Nebraska...
  Eastern McPherson County in west central Nebraska...
  Northwestern Custer County in central Nebraska...
  Southwestern Blaine County in north central Nebraska...
  Southern Thomas County in north central Nebraska...

* Until 930 PM CDT/830 PM MDT/.

* At 835 PM CDT/735 PM MDT/, severe thunderstorms were located along
  a line extending from 9 miles north of Tryon to 9 miles north of
  Hershey, moving east at 40 mph.

  HAZARD...60 mph wind gusts.

  SOURCE...Radar indicated.

  IMPACT...Expect damage to roofs, siding, and trees.

* Locations impacted include...
  North Platte, Stapleton, Tryon, Sutherland, Hershey, Arnold, Brady,
  Maxwell, Dunning, Gandy, Ringgold, Sutherland Reservoir State
  Recreation Area, North Platte Airport, Keith, Logan, Highway 83
  crossing The Dismal River, Coker, O'Fallons, Shanklin Bluff and
  Tarboz Lake.

This includes the following highways...
 Highway 2 between mile markers 229 and 243.
 Highway 92 between mile markers 196 and 249.
 Highway 97 between mile markers 1 and 49.
 Interstate 80 in Nebraska between mile markers 155 and 196.
 Highway 83 between mile markers 78 and 139.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

Wind damage with these storms may occur before any rain or 
lightning. Do not wait for the sound of thunder before taking cover.
SEEK SHELTER IMMEDIATELY inside a sturdy structure and stay away from
windows.

&&

LAT...LON 4111 10119 4180 10105 4193 10001 4101 10034
TIME...MOT...LOC 0135Z 252DEG 35KT 4169 10091 4129 10104 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Snively

2 follow-up statements

849 
WWUS53 KLBF 170203
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
903 PM CDT Thu Sep 16 2021

NEC091-170212-
/O.CAN.KLBF.SV.W.0181.000000T0000Z-210917T0230Z/
Hooker NE-
903 PM CDT Thu Sep 16 2021

...THE SEVERE THUNDERSTORM WARNING FOR SOUTHEASTERN HOOKER COUNTY IS
CANCELLED...

The storms which prompted the warning have moved out of the warned 
area. Therefore, the warning has been cancelled.

A Severe Thunderstorm Watch remains in effect until 300 AM CDT for
central, southwestern, north central and west central Nebraska.

LAT...LON 4110 10113 4128 10099 4183 10080 4193 10001
      4101 10034
TIME...MOT...LOC 0202Z 252DEG 35KT 4177 10059 4137 10072 

$$

NEC009-041-111-113-117-171-170230-
/O.CON.KLBF.SV.W.0181.000000T0000Z-210917T0230Z/
Lincoln NE-Logan NE-McPherson NE-Custer NE-Blaine NE-Thomas NE-
903 PM CDT Thu Sep 16 2021

...A SEVERE THUNDERSTORM WARNING REMAINS IN EFFECT UNTIL 930 PM CDT
FOR NORTHERN LINCOLN...LOGAN...EASTERN MCPHERSON...NORTHWESTERN
CUSTER...SOUTHWESTERN BLAINE AND SOUTHERN THOMAS COUNTIES...

At 902 PM CDT, severe thunderstorms were located along a line
extending from 14 miles south of Thedford to 10 miles south of
Ringgold, moving east at 40 mph.

HAZARD...60 mph wind gusts.

SOURCE...Radar indicated.

IMPACT...Expect damage to roofs, siding, and trees.

Locations impacted include...
North Platte, Stapleton, Hershey, Arnold, Brady, Maxwell, Dunning,
Gandy, Ringgold, Sutherland Reservoir State Recreation Area, North
Platte Airport, Keith, Logan, Highway 83 crossing The Dismal River,
O'Fallons, Shanklin Bluff, Tarboz Lake, Hoagland, Brown Lake and
Birdwood.

This includes the following highways...
 Highway 2 between mile markers 229 and 243.
 Highway 92 between mile markers 207 and 249.
 Highway 97 between mile markers 1 and 26.
 Interstate 80 in Nebraska between mile markers 160 and 196.
 Highway 83 between mile markers 78 and 139.

PRECAUTIONARY/PREPAREDNESS ACTIONS...

For your protection move to an interior room on the lowest floor of a
building.

&&

LAT...LON 4110 10113 4128 10099 4183 10080 4193 10001
      4101 10034
TIME...MOT...LOC 0202Z 252DEG 35KT 4177 10059 4137 10072 

HAIL THREAT...RADAR INDICATED
MAX HAIL SIZE...<.75 IN
WIND THREAT...RADAR INDICATED
MAX WIND GUST...60 MPH

$$

Snively

016 
WWUS53 KLBF 170220
SVSLBF

Severe Weather Statement
National Weather Service North Platte NE
920 PM CDT Thu Sep 16 2021

NEC009-041-111-113-117-171-170230-
/O.EXP.KLBF.SV.W.0181.000000T0000Z-210917T0230Z/
Lincoln NE-Logan NE-McPherson NE-Custer NE-Blaine NE-Thomas NE-
920 PM CDT Thu Sep 16 2021

...THE SEVERE THUNDERSTORM WARNING FOR NORTHERN LINCOLN...LOGAN...
EASTERN MCPHERSON...NORTHWESTERN CUSTER...SOUTHWESTERN BLAINE AND
SOUTHERN THOMAS COUNTIES WILL EXPIRE AT 930 PM CDT...
            
The storms which prompted the warning have weakened below severe
limits, and no longer pose an immediate threat to life or property.
Therefore, the warning will be allowed to expire.  However gusty
winds are still possible with these thunderstorms.

A Severe Thunderstorm Watch remains in effect until 300 AM CDT for
central, southwestern, north central and west central Nebraska.

LAT...LON 4110 10113 4128 10099 4183 10080 4193 10001
      4101 10034
TIME...MOT...LOC 0220Z 270DEG 35KT 4182 10037 4142 10050 

$$

Snively

The office that day

Everything else NWS North Platte, NE issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 16, 7:20 PM CDT	Severe Thunderstorm Warning	LBF	Keith, Perkins	40 min
Sep 16, 7:38 PM CDT	Special Weather Statement	LBF	Keith	52 min
Sep 16, 7:51 PM CDT	Special Weather Statement	LBF	Sheridan	39 min
Sep 16, 7:58 PM CDT	Severe Thunderstorm Warning	LBF	Arthur, Keith, Lincoln, McPherson, Perkins	47 min
Sep 16, 8:21 PM CDT	Severe Thunderstorm Warning	LBF	Cherry	39 min
Sep 16, 8:27 PM CDT	Special Weather Statement	LBF	Perkins	33 min
Sep 16, 8:33 PM CDT	Special Weather Statement	LBF	Cherry	42 min
Sep 16, 8:55 PM CDT	Special Weather Statement	LBF	Cherry	50 min
Sep 16, 9:00 PM CDT	Special Weather Statement	LBF	Lincoln	45 min
Sep 16, 9:09 PM CDT	Special Weather Statement	LBF	Cherry	36 min
Sep 16, 9:27 PM CDT	Special Weather Statement	LBF	Custer, Logan	63 min
Sep 16, 9:31 PM CDT	Special Weather Statement	LBF	Lincoln	59 min
Sep 16, 9:36 PM CDT	Special Weather Statement	LBF	Cherry	39 min
Sep 16, 9:37 PM CDT	Special Weather Statement	LBF	Chase	68 min
Sep 16, 9:47 PM CDT	Special Weather Statement	LBF	Arthur, Hooker, McPherson, Thomas	43 min
Sep 16, 9:56 PM CDT	Special Weather Statement	LBF	Garfield, Holt, Loup, Rock	49 min
Sep 16, 10:15 PM CDT	Special Weather Statement	LBF	Lincoln	45 min
Sep 16, 10:28 PM CDT	Special Weather Statement	LBF	Custer	62 min
Sep 16, 10:30 PM CDT	Special Weather Statement	LBF	McPherson	45 min
Sep 16, 10:50 PM CDT	Special Weather Statement	LBF	Lincoln	25 min
Sep 16, 10:54 PM CDT	Special Weather Statement	LBF	Boyd	51 min
Sep 16, 10:56 PM CDT	Special Weather Statement	LBF	Chase	34 min
Sep 16, 11:14 PM CDT	Special Weather Statement	LBF	Logan, Thomas	46 min
Sep 16, 11:21 PM CDT	Special Weather Statement	LBF	Chase, Perkins	39 min
Sep 16, 11:57 PM CDT	Special Weather Statement	LBF	Hayes, Keith, Perkins	48 min
Sep 16, 11:58 PM CDT	Special Weather Statement	LBF	Blaine	47 min
Sep 17, 12:42 AM CDT	Special Weather Statement	LBF	Lincoln	48 min
Sep 17, 1:30 AM CDT	Special Weather Statement	LBF	Frontier	45 min

Nearby

Severe Thunderstorm Warnings in Nebraska, 2021 Every severe thunderstorm warning in 2021

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; local storm reports from the same archive; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.